/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundBuilderSubsystem.h
Connects node output to a node input. DoesNOTprovide loop detection for performance reasons. Loop detection is checked on class registration when built or played. Returns succeeded if connection made, failed if connection already exists with input, the data types do not match, or the connection is not supported due to access type incompatibility (ex. constructor input to non-constructor input).
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Audio|MetaSound|Builder", Meta=(ExpandEnumAsExecs="OutResult")) void ConnectNodes ( const [FMetaSoundBuilderNodeOutputHandle](API\Plugins\MetasoundEngine\FMetaSoundBuilderNodeOutputHandl-) & NodeOutputHandle, const [FMetaSoundBuilderNodeInputHandle](API\Plugins\MetasoundEngine\FMetaSoundBuilderNodeInputHandle) & NodeInputHandle, [EMetaSoundBuilderResult](API\Plugins\MetasoundEngine\EMetaSoundBuilderResult) & OutResult )